> i tried to do bode plot, but error message appeared:
>
> error: called from:
> error:
> C:address@hidden
> at line39, column 9
> error: __cellfun_fcn_s__ at line 1, column 37
> error:
> C:\Octave\Octave3.4.2_gcc4.5.2\share\octave\packages\control-2.1.55\__frequency_response__.m
> at line 50, column 3
> error:
> C:\Octave\Octave3.4.2_gcc4.5.2\share\octave\packages\control-2.1.55\bode.m
> at line 58, columk 11
>
> is it related to the gmsh thingy?
It is not related to the gmsh warnings - you can ignore those.
You simply apply the changes described in the above link or, download and install the current control package from octave forge (this bug has been fixed in current version).